RSIC-1 ACOUSTIC ASSEMBLY

Transcription

1 RSIC-1 ACOUSTIC ASSEMBLY FLOOR/CEILING ASSEMBLY DIRECT FIX TO CONCRETE SLAB FCS5 DSWA FIIC 72 CONSTRUCTION * 3/8" Hard Wood flooring * 8" PT concrete slab Fire resistance ratings * R-8 insulation ANS/UL * RSIC-1 installed 48" oc. Non combustible design * 7/8" furring channel 24" oc. SOUND FIELD IMPACT * 1 Layers 5/8" Gypsum Drywall TRANSMISSION ISOLATION CLASS PAC INTERNATIONAL Inc. Toll Free Fax CLASS ( Insul 5.5 ) STC 71 FIIC 72

2 Sound Insulation Prediction (v5.5) Program copyright Marshall Day Acoustics 2003 PAC Licence no 0F0C0D70390C7B74 Margin of error is generally within +/- 3STC JobName: Job No.: Page No: Notes: DSA Vanc SCT 71 Date: 25 May 04 File name:insul 10.2 in 1.6 in Panel size 8.9x13 ft Initials: Surf. mass 97.4 lb/ft2 Crit. freq 147 Hz damping 0.01 Surf. mass 2.9 lb/ft2 Crit. freq 1997 Hz damping 0.01 Frequency (Hz) TL TL Transmission Loss x 8.0 in Concrete fo =80 Hz infill 1 x 0.6 3" in fiberglass Type X Gypsum (0.6 lb/ft3) Board thickness 2 in STC 71 OITC frequency (Hz) Transmission Loss STC

3 June 6, 2003 PAC International Inc. Las Vegas NV Attn: From: Re: Mike Gernhart Introduction Daly-Standlee & Associates, Inc. Joseph C. Begin Sr. Engineer Supplement to DSA Report No IIC1 Additional Impact Tests With Floor Covering Samples DSA File #: On May 12, 2003, at the request of PAC International, Daly-Standlee & Associates, Inc. (DSA) conducted a test of a post-tensioned concrete floor with a resiliently mounted ceiling, to determine its Field Impact Insulation Class (FIIC) rating. This test was conducted on a bare concrete floor. As reported in the official test report (DSA report No IIC1) as tested, the rating of this floor-ceiling system with no floor covering (bare concrete) was FIIC 51. In addition to the test of the bare floor, several samples of different floor coverings were tested the same evening at the same location. These samples, which measured approximately 4 feet by 4 feet, were tested by placing the sample on the concrete floor, centered on the location of the original test, and then conducting the test with the impact machine centered on the sample. The test was conducted in the manner prescribed in ASTM E However, because these were samples only and were not installed over the entire floor, these additional sample tests do not fully meet the requirements of ASTM E1007. Accordingly, these tests are being reported in this supplemental report. Due to time constraints, and the building owner s desire to not have any samples glued or otherwise fastened to the floor, some of the samples tested may not accurately represent a final installed condition R2.doc Page 1 of 3

4 Supplement to DSA Report No IIC1 Additional Impact Tests With Floor Covering Samples Although these additional tests did not fully meet the requirements of ASTM E1007, they provide useful information which may be indicative of the improvement in impact insulation performance with different types of floor finishes. Description of the Samples Tested Table 1 lists the tests conducted with a description of the floor finish for each test. Test 1 refers to the base condition (the bare concrete floor). Test No 1 2 Sample Name Base condition (not a sample) Tile laying 3 Tile on Regupol on 1/16 foam without foam Cushioned vinyl with pad without pad Table 1. Description of Test Samples Sample Description Bare concrete floor. Floor/ceiling system consisted of an 8 post-tensioned concrete slab with 5/8 gypsum board ceiling mounted to the underside of the slab using PAC International RSIC-1 resilient sound insulation clips and 7/8 x 25 gauge furring channel. The 1-5/8 cavity between the concrete and the gypsum board was filled with R8 insulation. ¼ x 12 x 12 ceramic tile bonded to ¼ thick fibercement backer board and grouted. Sample was laid on concrete floor, not bonded to it. Tile sample described in Test 2 with one layer of 5 mm Regupol underlayment material placed between the sample and the concrete floor. No adhesive was used. 3/8 thick x 3 wide pre-finished tongue & groove beveledge hardwood (boards made from plywood substrate with 1/16 oak surface) glued at seams and laid on 1/16 foam vapor barrier mat. No adhesive (other than between board edges) was used. sample described in Test 4, except that foam was replaced with 0.7 mil poly vapor barrier. No adhesive (other than between board edges) was used. Armstrong 1/8 cushioned vinyl flooring laid floor without adhesive. 40 oz carpet on 7 lb rebond pad. Sample was laid on concrete with no adhesive or fasteners. 40 oz carpet without pad. Sample was laid with no adhesive or fasteners. Test Results Test results are listed in Table R2.doc June 4, 2003 Page 2 of 3

5 Test No Sample Name Base condition (not a sample) Tile laying Tile on 5 mm Regupol on 1/16 foam without foam Cushioned vinyl with pad without pad Supplement to DSA Report No IIC1 Additional Impact Tests With Floor Covering Samples Table 2. Test Results FIIC Equivalent * Bands in Which Impact Noise Was Less Than 5 db Above Ambient 51 none 70 * 1000 to 3150 Hz 69 * 1250 to 3150 Hz 74 * 800 to 3150 Hz 72 * 3150 Hz 72 * 1250 to 3150 Hz 87 * All, except 60 Hz 84 * 250 to 3150 Hz * Except for Test 1, the base condition, the tests did not fully meet the requirements of ASTM E1007, because a sample, not a completely installed floor covering was tested. Hence the results are reported in Table 2 as an FIIC Equivalent rating. (Only the base condition Test 1 may be considered a true FIIC rating.) For each test, a sheet is attached that shows the normalized impact sound levels from the test in tabular and graphical form R2.doc June 4, 2003 Page 3 of 3

6 Vancouver Center Apartments - 424/324 - T5 - w/o Foam 1/3 Octave Center Frequency (Hz) Normalized Impact SPL Deficiency Receiving Room Absorption (Sabins) Notes 1/3 Octave Center Frequency (Hz) Normalized Impact SPL Deficiency Receiving Room Absorption (Sabins) Notes Total Deficiencies = 26 FIIC = 72 Normalized Sound Pressure Level Notes: 1. Receiving room volume was less than the ideal value specified in ASTM E (6.4) for testing in this frequency band. 2. Impact noise level in this band was less than 5 db above ambient. Therefore level indicates only an upper bound of the impact noise level Vancouver Center Apartments - 424/324 - T5 - w/o Foam /3-Octave Center Frequency (Hz) Normalized SPL FIIC FIIC Test5.xls 06/06/2003 Page 1

7 Daly-Standlee & Associates, Inc. tel: SW Griffith Drive, Suite 216 fax: Beaverton, OR Report on Field Impact Insulation Class (FIIC) Test Subject: Concrete Floor With Resiliently Mounted Ceiling Vancouver Center Apartments, Units 424/324 Prepared for: Mike Gernhart PAC International Inc. Las Vegas NV Summary DSA Test No: IIC1 Conducted: May 12, 2003 This report describes a test conducted to determine the Field Impact Insulation Class (FIIC) rating of a floor/ceiling system according to standard test procedures outlined in ASTM Designation E The floor/ceiling system tested consisted of the following elements: An 8 thick post-tensioned concrete slab A single layer of 5/8 gypsum board resiliently mounted to the underside of the slab using PAC International RSIC-1 Resilient Sound Insulation Clips and 7/8 x 25 gauge furring channel. The 1-5/8 cavity between the concrete slab and the gypsum board was filled with R8 fiberglass batt insulation. The test met all the requirements of ASTM E When tested with no floor covering (bare concrete), the assembly achieved a FIIC rating of 51). Tested by: Approved by: Joseph C. Begin Sr. Engineer Principal IIC1.doc Page 1 of 4